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Predict the structure from vsepr theory of diamond and graphite
I've heard of some rare materials like gold, and diamond but the question is, what's the rarest material on Earth?
Share here tips to clean diamond ring at home
men black diamond earrings or white diamond earrings for men? I don't know which one to get. i like ...
How do you get a ring GIA certified? Send it to their labaratory or can many jewelers do it? How much does it cost?